Use general Did type intsead of DidPkh in identity proofs

src/activitypub/actors/attachments.rs

@@ -11,7 +11,7 @@ use crate::ethereum::identity::{
     verify_eip191_identity_proof,
 };
 use crate::frontend::get_subscription_page_url;
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::did::Did;
 use crate::models::profiles::types::{
     ExtraField,
     IdentityProof,
@@ -45,13 +45,14 @@ pub fn parse_identity_proof(
     if proof_type != ETHEREUM_EIP191_PROOF {
         return Err(ValidationError("unknown proof type"));
     };
-    let did = attachment.name.parse::<DidPkh>()
+    let did = attachment.name.parse::<Did>()
         .map_err(|_| ValidationError("invalid did"))?;
+    let Did::Pkh(ref did_pkh) = did;
     let signature = attachment.signature_value.as_ref()
         .ok_or(ValidationError("missing signature"))?;
     verify_eip191_identity_proof(
         actor_id,
-        &did,
+        did_pkh,
         signature,
     ).map_err(|_| ValidationError("invalid identity proof"))?;
     let proof = IdentityProof {

src/activitypub/authentication.rs

@@ -9,6 +9,7 @@ use crate::http_signatures::verify::{
     verify_http_signature,
     HttpSignatureVerificationError as HttpSignatureError,
 };
+use crate::identity::did::Did;
 use crate::json_signatures::verify::{
     get_json_signature,
     verify_jcs_rsa_signature,
@@ -136,8 +137,9 @@ pub async fn verify_signed_activity(
             verify_jcs_rsa_signature(&signature_data, &public_key)?;
             actor_profile
         },
-        JsonSigner::DidPkh(ref signer) => {
-            let mut profiles: Vec<_> = search_profiles_by_did_only(db_client, signer)
+        JsonSigner::DidPkh(did_pkh) => {
+            let did = Did::Pkh(did_pkh.clone());
+            let mut profiles: Vec<_> = search_profiles_by_did_only(db_client, &did)
                 .await?.into_iter()
                 // Exclude local profiles
                 .filter(|profile| !profile.is_local())
@@ -150,7 +152,7 @@ pub async fn verify_signed_activity(
             };
             if let Some(profile) = profiles.pop() {
                 verify_jcs_eip191_signature(
-                    signer,
+                    &did_pkh,
                     &signature_data.message,
                     &signature_data.signature,
                 )?;

src/identity/did.rs

@@ -0,0 +1,79 @@
+/// https://www.w3.org/TR/did-core/
+use std::fmt;
+use std::str::FromStr;
+
+use regex::Regex;
+use serde::{
+    Deserialize, Deserializer, Serialize, Serializer,
+    de::Error as DeserializerError,
+};
+
+use super::did_pkh::DidPkh;
+
+const DID_RE: &str = r"did:(?P<method>\w+):.+";
+
+#[derive(Clone, Debug, PartialEq)]
+pub enum Did {
+    Pkh(DidPkh),
+}
+
+#[derive(thiserror::Error, Debug)]
+#[error("DID parse error")]
+pub struct DidParseError;
+
+impl FromStr for Did {
+    type Err = DidParseError;
+
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        let did_re = Regex::new(DID_RE).unwrap();
+        let caps = did_re.captures(value).ok_or(DidParseError)?;
+        let did = match &caps["method"] {
+            "pkh" => {
+                let did_pkh = DidPkh::from_str(value)?;
+                Self::Pkh(did_pkh)
+            },
+            _ => return Err(DidParseError),
+        };
+        Ok(did)
+    }
+}
+
+impl fmt::Display for Did {
+    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let did_str = match self {
+            Self::Pkh(did_pkh) => did_pkh.to_string(),
+        };
+        write!(formatter, "{}", did_str)
+    }
+}
+
+impl<'de> Deserialize<'de> for Did {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+        where D: Deserializer<'de>
+    {
+        let did_str: String = Deserialize::deserialize(deserializer)?;
+        did_str.parse().map_err(DeserializerError::custom)
+    }
+}
+
+impl Serialize for Did {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        let did_str = self.to_string();
+        serializer.serialize_str(&did_str)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_did_string_conversion() {
+        let did_str = "did:pkh:eip155:1:0xb9c5714089478a327f09197987f16f9e5d936e8a";
+        let did: Did = did_str.parse().unwrap();
+        assert!(matches!(did, Did::Pkh(_)));
+        assert_eq!(did.to_string(), did_str);
+    }
+}

src/identity/did_pkh.rs

@@ -3,13 +3,10 @@ use std::convert::TryInto;
 use std::str::FromStr;
 
 use regex::Regex;
-use serde::{
-    Deserialize, Deserializer, Serialize, Serializer,
-    de::Error as DeserializerError,
-};
 
 use crate::utils::caip2::ChainId;
 use crate::utils::currencies::Currency;
+use super::did::DidParseError;
 
 #[derive(Clone, Debug, PartialEq)]
 pub struct DidPkh {
@@ -43,10 +40,6 @@ impl ToString for DidPkh {
     }
 }
 
-#[derive(thiserror::Error, Debug)]
-#[error("DID parse error")]
-pub struct DidParseError;
-
 // https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md#syntax
 const DID_PKH_RE: &str = r"did:pkh:(?P<network>[-a-z0-9]{3,8}):(?P<chain>[-a-zA-Z0-9]{1,32}):(?P<address>[a-zA-Z0-9]{1,64})";
 
@@ -67,30 +60,12 @@ impl FromStr for DidPkh {
     }
 }
 
-impl Serialize for DidPkh {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-        where S: Serializer
-    {
-        let did_str = self.to_string();
-        serializer.serialize_str(&did_str)
-    }
-}
-
-impl<'de> Deserialize<'de> for DidPkh {
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-        where D: Deserializer<'de>
-    {
-        let did_str: String = Deserialize::deserialize(deserializer)?;
-        did_str.parse().map_err(DeserializerError::custom)
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
 
     #[test]
-    fn test_did_string_conversion() {
+    fn test_did_pkh_string_conversion() {
         let address = "0xB9C5714089478a327F09197987f16f9E5d936E8a";
         let ethereum = Currency::Ethereum;
         let did = DidPkh::from_address(&ethereum, address);

src/identity/mod.rs

@@ -1 +1,2 @@
+pub mod did;
 pub mod did_pkh;

src/mastodon_api/accounts/types.rs

@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
 use crate::errors::ValidationError;
+use crate::identity::did::Did;
 use crate::mastodon_api::pagination::PageSize;
 use crate::mastodon_api::uploads::{UploadError, save_validated_b64_file};
 use crate::models::profiles::types::{
@@ -78,12 +79,13 @@ impl Account {
 
         let mut identity_proofs = vec![];
         for proof in profile.identity_proofs.clone().into_inner() {
+            let Did::Pkh(did_pkh) = proof.issuer;
             // Skip proof if it doesn't map to field name
-            if let Some(currency) = proof.issuer.currency() {
+            if let Some(currency) = did_pkh.currency() {
                 let field_name = currency.field_name();
                 let field = AccountField {
                     name: field_name,
-                    value: proof.issuer.address,
+                    value: did_pkh.address,
                     // Use current time because DID proofs are always valid
                     verified_at: Some(Utc::now()),
                 };

src/mastodon_api/accounts/views.rs

@@ -25,7 +25,7 @@ use crate::ethereum::identity::{
     create_identity_claim,
     verify_eip191_identity_proof,
 };
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::did::Did;
 use crate::json_signatures::{
     canonicalization::canonicalize_object,
     create::{add_integrity_proof, IntegrityProof},
@@ -249,7 +249,7 @@ async fn send_signed_update(
 ) -> Result<HttpResponse, HttpError> {
     let db_client = &mut **get_database_client(&db_pool).await?;
     let current_user = get_current_user(db_client, auth.token()).await?;
-    let signer = data.signer.parse::<DidPkh>()
+    let signer = data.signer.parse::<Did>()
         .map_err(|_| ValidationError("invalid DID"))?;
     if !current_user.profile.identity_proofs.any(&signer) {
         return Err(ValidationError("unknown signer").into());
@@ -261,6 +261,7 @@ async fn send_signed_update(
     ).map_err(|_| HttpError::InternalError)?;
     let canonical_json = canonicalize_object(&activity)
         .map_err(|_| HttpError::InternalError)?;
+    let Did::Pkh(signer) = signer;
     verify_jcs_eip191_signature(&signer, &canonical_json, &data.signature)
         .map_err(|_| ValidationError("invalid signature"))?;
     let proof = IntegrityProof::jcs_eip191(&signer, &data.signature);
@@ -290,7 +291,7 @@ async fn get_identity_claim(
     let db_client = &**get_database_client(&db_pool).await?;
     let current_user = get_current_user(db_client, auth.token()).await?;
     let actor_id = current_user.profile.actor_id(&config.instance_url());
-    let did = query_params.did.parse::<DidPkh>()
+    let Did::Pkh(did) = query_params.did.parse::<Did>()
         .map_err(|_| ValidationError("invalid DID"))?;
     let claim = create_identity_claim(&actor_id, &did)
         .map_err(|_| HttpError::InternalError)?;
@@ -308,9 +309,10 @@ async fn create_identity_proof(
     let db_client = &**get_database_client(&db_pool).await?;
     let mut current_user = get_current_user(db_client, auth.token()).await?;
     let actor_id = current_user.profile.actor_id(&config.instance_url());
-    let did = proof_data.did.parse::<DidPkh>()
+    let did = proof_data.did.parse::<Did>()
         .map_err(|_| ValidationError("invalid DID"))?;
-    if did.chain_id != ChainId::ethereum_mainnet() {
+    let Did::Pkh(ref did_pkh) = did;
+    if did_pkh.chain_id != ChainId::ethereum_mainnet() {
         // DID must point to Ethereum Mainnet because it is a valid
         // identifier on any Ethereum chain
         return Err(ValidationError("unsupported chain ID").into());
@@ -319,7 +321,7 @@ async fn create_identity_proof(
         current_user.public_wallet_address(&Currency::Ethereum);
     if let Some(address) = maybe_public_address {
         // Do not allow to add more than one address proof
-        if did.address != address {
+        if did_pkh.address != address {
             return Err(ValidationError("DID doesn't match current identity").into());
         };
     };
@@ -336,7 +338,7 @@ async fn create_identity_proof(
     };
     verify_eip191_identity_proof(
         &actor_id,
-        &did,
+        did_pkh,
         &proof_data.signature,
     )?;
     let proof = IdentityProof {
@@ -399,7 +401,7 @@ async fn search_by_did(
     query_params: web::Query<SearchDidQueryParams>,
 ) -> Result<HttpResponse, HttpError> {
     let db_client = &**get_database_client(&db_pool).await?;
-    let did: DidPkh = query_params.did.parse()
+    let did: Did = query_params.did.parse()
         .map_err(|_| ValidationError("invalid DID"))?;
     let profiles = search_profiles_by_did(db_client, &did, false).await?;
     let accounts: Vec<Account> = profiles.into_iter()

src/mastodon_api/search/helpers.rs

@@ -11,7 +11,7 @@ use crate::activitypub::fetcher::helpers::{
 };
 use crate::config::Config;
 use crate::errors::{ValidationError, HttpError};
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::did::Did;
 use crate::mastodon_api::accounts::types::Account;
 use crate::mastodon_api::statuses::helpers::build_status_list;
 use crate::mastodon_api::statuses::types::Tag;
@@ -33,7 +33,7 @@ enum SearchQuery {
     TagQuery(String),
     Url(String),
     WalletAddress(String),
-    Did(DidPkh),
+    Did(Did),
     Unknown,
 }
 
@@ -66,7 +66,7 @@ fn parse_tag_query(query: &str) -> Result<String, ValidationError> {
 fn parse_search_query(search_query: &str) -> SearchQuery {
     let search_query = search_query.trim();
     // DID is a valid URI so it should be tried before Url::parse
-    if let Ok(did) = DidPkh::from_str(search_query) {
+    if let Ok(did) = Did::from_str(search_query) {
         return SearchQuery::Did(did);
     };
     if Url::parse(search_query).is_ok() {

src/models/profiles/queries.rs

@@ -4,7 +4,7 @@ use uuid::Uuid;
 use crate::database::catch_unique_violation;
 use crate::database::query_macro::query;
 use crate::errors::DatabaseError;
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::{did::Did, did_pkh::DidPkh};
 use crate::models::cleanup::{
     find_orphaned_files,
     find_orphaned_ipfs_objects,
@@ -402,7 +402,7 @@ pub async fn search_profiles(
 
 pub async fn search_profiles_by_did_only(
     db_client: &impl GenericClient,
-    did: &DidPkh,
+    did: &Did,
 ) -> Result<Vec<DbActorProfile>, DatabaseError> {
      let rows = db_client.query(
         "
@@ -425,12 +425,17 @@ pub async fn search_profiles_by_did_only(
 
 pub async fn search_profiles_by_did(
     db_client: &impl GenericClient,
-    did: &DidPkh,
+    did: &Did,
     prefer_verified: bool,
 ) -> Result<Vec<DbActorProfile>, DatabaseError> {
-    let did_str = did.to_string();
     let verified = search_profiles_by_did_only(db_client, did).await?;
-    let unverified = if let Some(currency) = did.currency() {
+    let maybe_currency_address = match did {
+        Did::Pkh(did_pkh) => {
+            did_pkh.currency()
+                .map(|currency| (currency, did_pkh.address.clone()))
+        },
+    };
+    let unverified = if let Some((currency, address)) = maybe_currency_address {
         // If currency is Ethereum,
         // search over extra fields must be case insensitive.
         let value_op = match currency {
@@ -457,9 +462,8 @@ pub async fn search_profiles_by_did(
         let field_name = currency.field_name();
         let query = query!(
             &statement,
-            did=did_str,
             field_name=field_name,
-            field_value=did.address,
+            field_value=address,
         )?;
         let rows = db_client.query(query.sql(), query.parameters()).await?;
         let unverified = rows.iter()
@@ -487,7 +491,8 @@ pub async fn search_profiles_by_wallet_address(
     wallet_address: &str,
     prefer_verified: bool,
 ) -> Result<Vec<DbActorProfile>, DatabaseError> {
-    let did = DidPkh::from_address(currency, wallet_address);
+    let did_pkh = DidPkh::from_address(currency, wallet_address);
+    let did = Did::Pkh(did_pkh);
     search_profiles_by_did(db_client, &did, prefer_verified).await
 }
 
@@ -723,7 +728,7 @@ mod tests {
     async fn test_search_profiles_by_wallet_address_identity_proof() {
         let db_client = &mut create_test_database().await;
         let identity_proof = IdentityProof {
-            issuer: DidPkh::from_address(&ETHEREUM, "0x1234abcd"),
+            issuer: Did::Pkh(DidPkh::from_address(&ETHEREUM, "0x1234abcd")),
             proof_type: "ethereum".to_string(),
             value: "13590013185bdea963".to_string(),
         };

src/models/profiles/types.rs

@@ -14,7 +14,7 @@ use crate::activitypub::actors::types::{Actor, ActorAddress};
 use crate::activitypub::identifiers::local_actor_id;
 use crate::database::json_macro::{json_from_sql, json_to_sql};
 use crate::errors::{ConversionError, ValidationError};
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::did::Did;
 use crate::utils::caip2::ChainId;
 use super::validators::{
     validate_username,
@@ -25,7 +25,7 @@ use super::validators::{
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct IdentityProof {
-    pub issuer: DidPkh,
+    pub issuer: Did,
     pub proof_type: String,
     pub value: String,
 }
@@ -41,7 +41,7 @@ impl IdentityProofs {
 
     /// Returns true if identity proof list contains at least one proof
     /// created by a given DID.
-    pub fn any(&self, issuer: &DidPkh) -> bool {
+    pub fn any(&self, issuer: &Did) -> bool {
         let Self(identity_proofs) = self;
         identity_proofs.iter().any(|proof| proof.issuer == *issuer)
     }
@@ -430,7 +430,8 @@ mod tests {
     fn test_identity_proof_serialization() {
         let json_data = r#"{"issuer":"did:pkh:eip155:1:0xb9c5714089478a327f09197987f16f9e5d936e8a","proof_type":"ethereum-eip191-00","value":"dbfe"}"#;
         let proof: IdentityProof = serde_json::from_str(json_data).unwrap();
-        assert_eq!(proof.issuer.address, "0xb9c5714089478a327f09197987f16f9e5d936e8a");
+        let Did::Pkh(ref did_pkh) = proof.issuer;
+        assert_eq!(did_pkh.address, "0xb9c5714089478a327f09197987f16f9e5d936e8a");
         let serialized = serde_json::to_string(&proof).unwrap();
         assert_eq!(serialized, json_data);
     }

src/models/users/queries.rs

@@ -3,7 +3,7 @@ use uuid::Uuid;
 
 use crate::database::catch_unique_violation;
 use crate::errors::DatabaseError;
-use crate::identity::did_pkh::DidPkh;
+use crate::identity::{did::Did, did_pkh::DidPkh};
 use crate::models::profiles::queries::create_profile;
 use crate::models::profiles::types::{DbActorProfile, ProfileCreateData};
 use crate::utils::currencies::Currency;
@@ -184,7 +184,7 @@ pub async fn get_user_by_login_address(
 
 pub async fn get_user_by_did(
     db_client: &impl GenericClient,
-    did: &DidPkh,
+    did: &Did,
 ) -> Result<User, DatabaseError> {
     // DIDs must be locally unique
     let maybe_row = db_client.query_opt(
@@ -212,7 +212,8 @@ pub async fn get_user_by_public_wallet_address(
     currency: &Currency,
     wallet_address: &str,
 ) -> Result<User, DatabaseError> {
-    let did = DidPkh::from_address(currency, wallet_address);
+    let did_pkh = DidPkh::from_address(currency, wallet_address);
+    let did = Did::Pkh(did_pkh);
     get_user_by_did(db_client, &did).await
 }
 

src/models/users/types.rs

@@ -4,6 +4,7 @@ use regex::Regex;
 use uuid::Uuid;
 
 use crate::errors::ValidationError;
+use crate::identity::did::Did;
 use crate::models::profiles::types::DbActorProfile;
 use crate::utils::currencies::Currency;
 
@@ -48,11 +49,12 @@ impl User {
     /// Returns wallet address if it is verified
     pub fn public_wallet_address(&self, currency: &Currency) -> Option<String> {
         for proof in self.profile.identity_proofs.clone().into_inner() {
+            let Did::Pkh(did_pkh) = proof.issuer;
             // Return the first matching address, because only
             // one proof per currency is allowed.
-            if let Some(ref address_currency) = proof.issuer.currency() {
+            if let Some(ref address_currency) = did_pkh.currency() {
                 if address_currency == currency {
-                    return Some(proof.issuer.address);
+                    return Some(did_pkh.address);
                 };
             };
         };